None, it might cause oil to spill on your engine or inside of your hood, or a dash light might come on.
Neither your oil filter, or the fill cap need to be loose, the filter should be screwed on as tight as you can get it by hand only, and the fill cap should fit snugly so it does not come off. If the oil filter is loose or too tight you can blow out the seal which will cause you lose all your oil.
its loose
Loose oil line can cause:oil leaksoil puddles and contamination of ground waterlow oil levelengine or other oil lubricated component failure.
Yes, just had exactly the same problem, I tightened oil cap correctly and cleaned the oil thst has splattered around the engine compartment and it has solved the odour of oil / fumes.
The threads are worn and the vibration of the engine causes the oil cap to loosen. Replace the oil cap or try a little teflon tape on the male thread as a temporary fix.
A loose, improperly aligned or worn-out oil filter are common causes of car oil leaks. A loose or improperly threaded drain plug could also cause an oil leak to occur.
no. This will cause problems in the transmition.
A major leak.
Not likely but possible.
Not unless you loose enough oil to cause a lack of lubrication.
It can cause your oil cap to blow right off, foam around the oil cap is more likely to be water or coolant. Get it checked right away because it can damage your engine. It's usually a sign of a bad head gasket, it lets water into the oil and oil into the water. Check your radiator to see if there is oil in the water and if the water is low.
Put the oil fill cap back on!